The causes and preventive measures of orange peel in summer paint application

With the arrival of summer, it is necessary to take preventive and control measures in advance for various quality problems that occur during the hot summer season. Below, the author will analyze for you the reasons for the occurrence of orange peel in summer coating construction and the preventive measures.

What is orange peel? Orange peel refers to the appearance of ripples on the surface of the coating film that are more than 1mm thick and somewhat resemble the shape of an orange peel. There are several reasons for its appearance:
1) The viscosity of the coating is too high
2) The distance between the spray guns is relatively far
3) The amount of paint spat out during spraying is relatively small
4) The temperature is too high during the spraying process
5) The drying time of the coating is relatively short

The preventive measures after the appearance of orange peel are as follows:
When spraying at high temperatures in summer, the viscosity of the coating should be appropriately reduced according to the temperature changes
2) Adjust the distance between the spray gun and the object to be sprayed (generally 20 to 30cm
3) The coating pressure should be controlled between 0.4 and 0.6MPa
4) The drying time should be controlled at 5 to 10 minutes
5) The substrate should be ground smooth